./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ab225753-fe4d-45a4-87b3-b4df6fead7e2/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ab225753-fe4d-45a4-87b3-b4df6fead7e2/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ab225753-fe4d-45a4-87b3-b4df6fead7e2/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ab225753-fe4d-45a4-87b3-b4df6fead7e2/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ab225753-fe4d-45a4-87b3-b4df6fead7e2/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ab225753-fe4d-45a4-87b3-b4df6fead7e2/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 835dc6725bef5f7d15ae0e4368f1a97f9d2b8c09 .............................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-03 11:03:59,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 11:03:59,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 11:03:59,155 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 11:03:59,156 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 11:03:59,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 11:03:59,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 11:03:59,175 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 11:03:59,201 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 11:03:59,203 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 11:03:59,204 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 11:03:59,206 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 11:03:59,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 11:03:59,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 11:03:59,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 11:03:59,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 11:03:59,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 11:03:59,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 11:03:59,216 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 11:03:59,219 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 11:03:59,221 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 11:03:59,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 11:03:59,224 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 11:03:59,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 11:03:59,229 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 11:03:59,230 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 11:03:59,230 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 11:03:59,232 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 11:03:59,232 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 11:03:59,234 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 11:03:59,234 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 11:03:59,240 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 11:03:59,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 11:03:59,243 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 11:03:59,244 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 11:03:59,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 11:03:59,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 11:03:59,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 11:03:59,247 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 11:03:59,248 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 11:03:59,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 11:03:59,251 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ab225753-fe4d-45a4-87b3-b4df6fead7e2/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-12-03 11:03:59,282 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 11:03:59,282 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 11:03:59,283 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-03 11:03:59,284 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-03 11:03:59,284 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-03 11:03:59,285 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-03 11:03:59,285 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 11:03:59,285 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-03 11:03:59,286 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 11:03:59,286 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 11:03:59,286 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 11:03:59,287 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 11:03:59,287 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 11:03:59,287 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-03 11:03:59,288 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 11:03:59,288 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 11:03:59,288 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 11:03:59,288 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-03 11:03:59,289 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-03 11:03:59,289 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 11:03:59,289 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-03 11:03:59,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-03 11:03:59,290 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 11:03:59,290 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 11:03:59,290 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 11:03:59,291 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-03 11:03:59,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 11:03:59,291 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 11:03:59,291 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_ab225753-fe4d-45a4-87b3-b4df6fead7e2/bin/ukojak/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ab225753-fe4d-45a4-87b3-b4df6fead7e2/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 835dc6725bef5f7d15ae0e4368f1a97f9d2b8c09 [2020-12-03 11:03:59,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 11:03:59,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 11:03:59,675 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 11:03:59,677 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 11:03:59,678 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 11:03:59,681 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ab225753-fe4d-45a4-87b3-b4df6fead7e2/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c [2020-12-03 11:03:59,794 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ab225753-fe4d-45a4-87b3-b4df6fead7e2/bin/ukojak/data/b0bbd18e4/ec400a1733bd46ff90578ac00e901f81/FLAGf1922d090 [2020-12-03 11:04:00,387 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 11:04:00,387 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ab225753-fe4d-45a4-87b3-b4df6fead7e2/sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c [2020-12-03 11:04:00,395 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ab225753-fe4d-45a4-87b3-b4df6fead7e2/bin/ukojak/data/b0bbd18e4/ec400a1733bd46ff90578ac00e901f81/FLAGf1922d090 [2020-12-03 11:04:00,740 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ab225753-fe4d-45a4-87b3-b4df6fead7e2/bin/ukojak/data/b0bbd18e4/ec400a1733bd46ff90578ac00e901f81 [2020-12-03 11:04:00,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 11:04:00,745 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 11:04:00,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 11:04:00,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 11:04:00,759 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 11:04:00,761 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 11:04:00" (1/1) ... [2020-12-03 11:04:00,764 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54d085dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:04:00, skipping insertion in model container [2020-12-03 11:04:00,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 11:04:00" (1/1) ... [2020-12-03 11:04:00,772 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 11:04:00,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 11:04:00,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 11:04:00,944 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 11:04:00,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 11:04:01,002 INFO L208 MainTranslator]: Completed translation [2020-12-03 11:04:01,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:04:01 WrapperNode [2020-12-03 11:04:01,003 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 11:04:01,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 11:04:01,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 11:04:01,004 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 11:04:01,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:04:01" (1/1) ... [2020-12-03 11:04:01,022 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:04:01" (1/1) ... [2020-12-03 11:04:01,042 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 11:04:01,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 11:04:01,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 11:04:01,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 11:04:01,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:04:01" (1/1) ... [2020-12-03 11:04:01,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:04:01" (1/1) ... [2020-12-03 11:04:01,051 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:04:01" (1/1) ... [2020-12-03 11:04:01,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:04:01" (1/1) ... [2020-12-03 11:04:01,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:04:01" (1/1) ... [2020-12-03 11:04:01,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:04:01" (1/1) ... [2020-12-03 11:04:01,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:04:01" (1/1) ... [2020-12-03 11:04:01,059 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 11:04:01,060 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 11:04:01,060 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 11:04:01,060 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 11:04:01,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:04:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab225753-fe4d-45a4-87b3-b4df6fead7e2/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-03 11:04:01,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 11:04:01,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 11:04:01,322 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 11:04:01,322 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-03 11:04:01,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 11:04:01 BoogieIcfgContainer [2020-12-03 11:04:01,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 11:04:01,326 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-03 11:04:01,326 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-03 11:04:01,336 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-03 11:04:01,336 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 11:04:01" (1/1) ... [2020-12-03 11:04:01,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 11:04:01,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:04:01,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 22 states and 25 transitions. [2020-12-03 11:04:01,380 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2020-12-03 11:04:01,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-03 11:04:01,383 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:04:01,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:04:01,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:04:01,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:04:01,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 26 states and 34 transitions. [2020-12-03 11:04:01,658 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2020-12-03 11:04:01,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-03 11:04:01,659 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:04:01,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:04:01,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:04:01,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:04:01,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 25 states and 33 transitions. [2020-12-03 11:04:01,731 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2020-12-03 11:04:01,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-03 11:04:01,732 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:04:01,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:04:01,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:04:02,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:04:02,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 29 states and 44 transitions. [2020-12-03 11:04:02,036 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 44 transitions. [2020-12-03 11:04:02,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-03 11:04:02,040 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:04:02,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:04:02,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:04:02,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:04:02,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 31 states and 47 transitions. [2020-12-03 11:04:02,190 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 47 transitions. [2020-12-03 11:04:02,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-03 11:04:02,192 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:04:02,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:04:02,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:04:02,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:04:02,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 33 states and 50 transitions. [2020-12-03 11:04:02,362 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 50 transitions. [2020-12-03 11:04:02,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-03 11:04:02,363 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:04:02,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:04:02,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:04:02,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:04:02,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 38 states and 60 transitions. [2020-12-03 11:04:02,646 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 60 transitions. [2020-12-03 11:04:02,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-03 11:04:02,647 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:04:02,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:04:02,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:04:03,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:04:03,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 40 states and 65 transitions. [2020-12-03 11:04:03,028 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 65 transitions. [2020-12-03 11:04:03,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-03 11:04:03,028 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:04:03,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:04:03,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:04:03,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:04:03,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 42 states and 68 transitions. [2020-12-03 11:04:03,236 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 68 transitions. [2020-12-03 11:04:03,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-03 11:04:03,239 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:04:03,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:04:03,315 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:04:03,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:04:03,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 42 states and 67 transitions. [2020-12-03 11:04:03,402 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 67 transitions. [2020-12-03 11:04:03,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-03 11:04:03,403 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:04:03,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:04:03,544 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:04:04,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:04:04,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 46 states and 74 transitions. [2020-12-03 11:04:04,105 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 74 transitions. [2020-12-03 11:04:04,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-03 11:04:04,108 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:04:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:04:04,153 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-03 11:04:04,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:04:04,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 48 states and 76 transitions. [2020-12-03 11:04:04,392 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 76 transitions. [2020-12-03 11:04:04,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-03 11:04:04,393 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:04:04,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:04:04,430 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-03 11:04:04,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:04:04,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 50 states and 77 transitions. [2020-12-03 11:04:04,596 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 77 transitions. [2020-12-03 11:04:04,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-03 11:04:04,597 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:04:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:04:04,610 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:04:04,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:04:04,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 51 states and 79 transitions. [2020-12-03 11:04:04,846 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 79 transitions. [2020-12-03 11:04:04,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-03 11:04:04,849 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:04:04,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:04:04,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:04:05,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:04:05,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 51 states and 77 transitions. [2020-12-03 11:04:05,031 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 77 transitions. [2020-12-03 11:04:05,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-03 11:04:05,034 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:04:05,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:04:05,064 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:04:05,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:04:05,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2020-12-03 11:04:05,211 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2020-12-03 11:04:05,212 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-03 11:04:05,212 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 16 iterations. [2020-12-03 11:04:05,219 INFO L765 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2020-12-03 11:04:05,312 INFO L569 CodeCheckObserver]: Invariant with dag size 10 [2020-12-03 11:04:05,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 11:04:05 ImpRootNode [2020-12-03 11:04:05,331 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-03 11:04:05,333 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 11:04:05,337 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 11:04:05,337 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 11:04:05,338 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 11:04:01" (3/4) ... [2020-12-03 11:04:05,342 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-03 11:04:05,354 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-03 11:04:05,354 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-12-03 11:04:05,355 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-03 11:04:05,413 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ab225753-fe4d-45a4-87b3-b4df6fead7e2/bin/ukojak/witness.graphml [2020-12-03 11:04:05,417 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 11:04:05,420 INFO L168 Benchmark]: Toolchain (without parser) took 4673.86 ms. Allocated memory was 96.5 MB in the beginning and 127.9 MB in the end (delta: 31.5 MB). Free memory was 62.1 MB in the beginning and 76.9 MB in the end (delta: -14.8 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. [2020-12-03 11:04:05,421 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 96.5 MB. Free memory was 68.4 MB in the beginning and 68.4 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 11:04:05,423 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.85 ms. Allocated memory is still 96.5 MB. Free memory was 61.9 MB in the beginning and 74.6 MB in the end (delta: -12.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-03 11:04:05,424 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.82 ms. Allocated memory is still 96.5 MB. Free memory was 74.6 MB in the beginning and 73.2 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 11:04:05,424 INFO L168 Benchmark]: Boogie Preprocessor took 16.54 ms. Allocated memory is still 96.5 MB. Free memory was 73.2 MB in the beginning and 72.4 MB in the end (delta: 802.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 11:04:05,425 INFO L168 Benchmark]: RCFGBuilder took 264.98 ms. Allocated memory is still 96.5 MB. Free memory was 72.4 MB in the beginning and 60.2 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-03 11:04:05,426 INFO L168 Benchmark]: CodeCheck took 4005.57 ms. Allocated memory was 96.5 MB in the beginning and 127.9 MB in the end (delta: 31.5 MB). Free memory was 60.2 MB in the beginning and 79.0 MB in the end (delta: -18.8 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. [2020-12-03 11:04:05,426 INFO L168 Benchmark]: Witness Printer took 85.18 ms. Allocated memory is still 127.9 MB. Free memory was 79.0 MB in the beginning and 76.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 11:04:05,430 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 22 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.8s, OverallIterations: 16, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 155648 SDtfs, 223574 SDslu, 205088 SDs, 0 SdLazy, 668340 SolverSat, 143406 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1197 GetRequests, 1070 SyntacticMatches, 39 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3624 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 1908 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 14 PerfectInterpolantSequences, 19/20 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (x <= 2147483647 && 0 <= x + 2147483648) && y <= 2147483647 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 96.5 MB. Free memory was 68.4 MB in the beginning and 68.4 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 248.85 ms. Allocated memory is still 96.5 MB. Free memory was 61.9 MB in the beginning and 74.6 MB in the end (delta: -12.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.82 ms. Allocated memory is still 96.5 MB. Free memory was 74.6 MB in the beginning and 73.2 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 16.54 ms. Allocated memory is still 96.5 MB. Free memory was 73.2 MB in the beginning and 72.4 MB in the end (delta: 802.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 264.98 ms. Allocated memory is still 96.5 MB. Free memory was 72.4 MB in the beginning and 60.2 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 4005.57 ms. Allocated memory was 96.5 MB in the beginning and 127.9 MB in the end (delta: 31.5 MB). Free memory was 60.2 MB in the beginning and 79.0 MB in the end (delta: -18.8 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. * Witness Printer took 85.18 ms. Allocated memory is still 127.9 MB. Free memory was 79.0 MB in the beginning and 76.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...